{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["machanical property", "concept or principle", "enabling technology", "biomedical", "material", "manufacturing process"], "input": "Similar to lattice structures , which are made artificially , natural porous structures become a set of special elements to deal with specific design requirements ."}
{"machanical property": ["porous"], "concept or principle": [], "enabling technology": [], "biomedical": [], "material": ["elements"], "manufacturing process": []}